This article investigates the importance of mergers in the public sector , analysing the case of T oscana Energia—a gas supplier in Italy. T oscana Energia was formed by merging three entities. There was no improvement in financial performance after the merger. Realistic merger benefits include competitive gains and, in this case, a better deal for consumers. P oliticians under pressure to merge should insist on the public sector being the majority owner in utilities. The best merger outcomes are of smaller municipal enterprises.